Eruption History
Eruption History
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Geology and History of Newberry Volcano
Rising gradually southward to 4,000 feet above the City of Bend, Oregon, Newberry Volcano appears from Bend as a broad ridge on the horizon.
Eruption History of Newberry Volcano
Eruption history of Newberry Volcano.
Features of Newberry Caldera
The present 6.5 by 8 km (4 by 5 mi) caldera at Newberry Volcano's summit formed about 75,000 years ago by a major explosive eruption and collapse event.
Post-Mazama Eruption Products from <7,700 years ago
Newberry Volcano has seen many eruptions in just the last 7+ millennia.
Big Obsidian Flow
The Big Obsidian Flow is the youngest volcanic feature at Newberry and covers just over 2.6 square kilometers.